diff options
| author | Johan Hedberg | 2014-06-01 14:38:09 +0200 |
|---|---|---|
| committer | Marcel Holtmann | 2014-12-03 16:51:19 +0100 |
| commit | dddd3059e3bdd02c4850b14b925b3bb37c23f248 (patch) | |
| tree | af4cc385c771cb5eac511180b2dcb97ca8550cf9 /net/bluetooth | |
| parent | Bluetooth: Set correct LTK type and authentication for SC (diff) | |
| download | kernel-qcow2-linux-dddd3059e3bdd02c4850b14b925b3bb37c23f248.tar.gz kernel-qcow2-linux-dddd3059e3bdd02c4850b14b925b3bb37c23f248.tar.xz kernel-qcow2-linux-dddd3059e3bdd02c4850b14b925b3bb37c23f248.zip | |
Bluetooth: Add support for SC just-works pairing
If the just-works method was chosen we shouldn't send anything to user
space but simply proceed with sending the DHKey Check PDU. This patch
adds the necessary code for it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/smp.c | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 30439368a55a..b6cdb553ccd3 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -1198,22 +1198,13 @@ static int sc_mackey_and_ltk(struct smp_chan *smp, u8 mackey[16], u8 ltk[16]) return smp_f5(smp->tfm_cmac, smp->dhkey, na, nb, a, b, mackey, ltk); } -static int sc_user_reply(struct smp_chan *smp, u16 mgmt_op, __le32 passkey) +static void sc_dhkey_check(struct smp_chan *smp, __le32 passkey) { struct hci_conn *hcon = smp->conn->hcon; struct smp_cmd_dhkey_check check; u8 a[7], b[7], *local_addr, *remote_addr; u8 io_cap[3], r[16]; - switch (mgmt_op) { - case MGMT_OP_USER_PASSKEY_NEG_REPLY: - smp_failure(smp->conn, SMP_PASSKEY_ENTRY_FAILED); - return 0; - case MGMT_OP_USER_CONFIRM_NEG_REPLY: - smp_failure(smp->conn, SMP_NUMERIC_COMP_FAILED); - return 0; - } - memcpy(a, &hcon->init_addr, 6); memcpy(b, &hcon->resp_addr, 6); a[6] = hcon->init_addr_type; @@ -1229,13 +1220,29 @@ static int sc_user_reply(struct smp_chan *smp, u16 mgmt_op, __le32 passkey) memcpy(io_cap, &smp->prsp[1], 3); } - memcpy(r, &passkey, sizeof(passkey)); - memset(r + sizeof(passkey), 0, sizeof(r) - sizeof(passkey)); + memset(r, 0, sizeof(r)); + + if (smp->method == REQ_PASSKEY || smp->method == DSP_PASSKEY) + memcpy(r, &passkey, sizeof(passkey)); smp_f6(smp->tfm_cmac, smp->mackey, smp->prnd, smp->rrnd, r, io_cap, local_addr, remote_addr, check.e); smp_send_cmd(smp->conn, SMP_CMD_DHKEY_CHECK, sizeof(check), &check); +} + +static int sc_user_reply(struct smp_chan *smp, u16 mgmt_op, __le32 passkey) +{ + switch (mgmt_op) { + case MGMT_OP_USER_PASSKEY_NEG_REPLY: + smp_failure(smp->conn, SMP_PASSKEY_ENTRY_FAILED); + return 0; + case MGMT_OP_USER_CONFIRM_NEG_REPLY: + smp_failure(smp->conn, SMP_NUMERIC_COMP_FAILED); + return 0; + } + + sc_dhkey_check(smp, passkey); return 0; } @@ -1599,6 +1606,14 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb) if (err) return SMP_UNSPECIFIED; + if (smp->method == JUST_WORKS) { + if (hcon->out) { + sc_dhkey_check(smp, passkey); + SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK); + } + return 0; + } + err = mgmt_user_confirm_request(hcon->hdev, &hcon->dst, hcon->type, hcon->dst_type, passkey, 0); |